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CAT5271

Dual 256‐position I2C Compatible Digital Potentiometers (POTs)

ON Semiconductor 

CAT5271, CAT5273

Dual 256‐position I2C

Compatible Digital

Potentiometers (POTs)

The CAT5271 and CAT5273 are dual 256-position digital

programmable linear taper potentiometers ideally suited for replacing

mechanical potentiometers and variable resistors.

The wiper settings are controlled through an I2C-compatible digital

interface. Upon power-up, the wiper assumes a midscale position and

may be repositioned anytime after the power is stable. The devices can

be programmed to go to a shutdown state during operation.

The CAT5271 and CAT5273 operate from 2.7 V to 5.5 V, while

consuming less than 2 mA. This low operating current, combined with

a small package footprint, makes them ideal for battery-powered

portable applications.

The CAT5271 and CAT5273, designed as pin for pin replacements

for the AD5243 and AD5248, are offered in the 10-lead MSOP

package and operate over the −40C to +85C industrial temperature

range.

Features

 Dual 256-position

 End-to-End Resistance: 50 kW, 100 kW

 I2C Compatible Interface*

 Power-on Preset to Midscale

 Single Supply 2.7 V to 5.5 V

 Low Temperature Coefficient 100 ppm/C

 Low Power, IDD 2 mA max

 Wide Operating Temperature −40C to +85C

 MSOP−10 Package (3 mm  4.9 mm)

 These Devices are Pb-Free, Halogen Free/BFR Free and are

RoHS Compliant

Typical Applications

 Potentiometer Replacement

 Transducer Adjustment of Pressure, Temperature, Position,

Chemical, and Optical Sensors

 RF Amplifier Biasing

 Gain Control and Offset Adjustment

*Two address decode pins (CAT5273 only) allowing

multiple devices on the same bus

 Semiconductor Components Industries, LLC, 2013

1

July, 2013 − Rev. 3

http://onsemi.com

MSOP−10

Z SUFFIX

CASE 846AE

MARKING DIAGRAMS

ANCC

YMR

ANCE

YMR

PAYM

LXX

1

1

1

ANCC = CAT5721 − 50 kW

ANCE = CAT5721 − 100 kW

PA = CAT5273 − 50 kW*

Y = Production Year (Last Digit)

M = Production Month (1−9, O, N, D)

R = Revision

L = Assembly Location

XX = Last Two Digits of Assembly Lot Number

*Contact factory for availability of CAT5273 − 100 kW

B1

A1

W2

GND

VDD

PIN CONNECTIONS

1

CAT5271

W1

B2

A2

SDA

SCL

B1

AD0

W2

GND

VDD

1

CAT5273

(Top Views)

W1

B2

AD1

SDA

SCL

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 12 of this data sheet.

Publication Order Number:

CAT5271/D

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